Exercise: Electronic Principles

Questions for: Electronic Principles

Which one of the following statements applies to common auto batteries?
A:
Auto batteries are primary wet-cell batteries
B:
Auto batteries are secondary wet-cell batteries
C:
Auto batteries are secondary dry-cell batteries
D:
Auto batteries are primary dry-cell batteries
Answer: B
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What is the primary difference between primary and secondary cell batteries?
A:
Primary-cell batteries can be recharged and used many times, whereas secondary-cell batteries cannot be properly recharged
B:
Secondary-cell batteries can be recharged and used many times, whereas primary-cell batteries cannot be properly recharged
C:
Primary-cell batteries use chemical cells, whereas secondary-cell batteries use an alternative energy source, such as thermal or magnetic energy, to supplement their outputs
D:
Primary-cell batteries must be recharged at a much slower rate that secondary-cell batteries
Answer: B
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When operating above its resonant frequency, a series RLC circuit has the characteristics of a:
A:
series RL circuit
B:
series RC circuit
C:
series RLC circuit operated below its resonant frequency
D:
purely resistive circuit
Answer: A
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What is the inductive reactance of a 2-H coil operating at 60 Hz?
A:
754 Ohm
B:
30 Ohm
C:
60 Ohm
D:
120 Ohm
Answer: A
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The dielectric constant of a material is a measure of:
A:
the amount of voltage it can withstand before breaking down
B:
how well the material concentrates electrostatic lines of force
C:
the amount of opposition to the current flow
D:
how well the material concentrates magnetic lines of force
Answer: B
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